debian man page for xseteventqueueowner

XSetEventQueueOwner(3)						  XLIB FUNCTIONS					    XSetEventQueueOwner(3)

NAME
       XSetEventQueueOwner - set event queue owner on a shared Xlib/XCB connection

SYNTAX

	       #include <X11/Xlib-xcb.h>

       void XSetEventQueueOwner(Display *dpy, enum XEventQueueOwner owner);

ARGUMENTS
       dpy	 Specifies the connection to the X server.

       owner	 Specifies the event queue ownership:

		 XlibOwnsEventQueue (default)
			Xlib owns the event queue.  Use the Xlib event-handling functions.  Do not call the XCB event-handling functions.

		 XCBOwnsEventQueue
			XCB owns the event queue.  Use the XCB event-handling functions.  Do not call the Xlib event-handling functions.

DESCRIPTION
       While  a  client  using Xlib/XCB can issue requests and handle their replies or errors with either Xlib or XCB, only one can own and handle
       the event queue.  By default, Xlib must own the event queue, for compatibility with legacy Xlib clients.  Clients can call  XSetEventQueue-
       Owner  immediately  after XOpenDisplay to let XCB own the event queue instead.  Clients may not call XSetEventQueueOwner at any other time,
       as this will potentially lose responses.

SEE ALSO
       XOpenDisplay(3), XGetXCBConnection(3),
       Xlib - C Language X Interface

X Version 11							   libX11 1.5.0 					    XSetEventQueueOwner(3)